09:45 〜 10:00 ▲ [15a-D505-2] Near-infrared-to-visible photon upconversion in solid state using PbS QD sensitized triplet-triplet annihilation system by 980-nm excitation 〇Neeti Tripathi1、Masanori Ando2、Tomoko Akai1、Kenji Kamada1 (1.NMRI, AIST、2.BMRI, AIST)